I had just turned 21 and I wasn’t that good at parties, but my family said that it was a special occasion, so we should have all my friends and family around and have a good time.

I should fill you in on some details. My name is David. I’m not that muscled, more along the lines of naturally toned, but I’m still in shape. I'm about 6 foot 2 with dark brown hair, blue eyes, and a killer smile. I’m also blessed with an amazing girlfriend who I've been with for about a year but known for several. When I say blessed I mean blessed; she is sweet, kind, caring, honest and has an incredibly hot body.

Tina is 20, about 5 foot 8, with hazel eyes, long golden hair and 38c boobs, which I think are perfect; not too small, not too big, they're just right. There's one down side, though. Whenever we have sex she never really moans. She moans a little but not as much as I would like her to. I never have to worry if I'm pleasing her, though; I can always feel when she's about to cum as her pussy grips me like a vice and she never once complains about my size. I would say I'm just a little above average but she says I'm the biggest she’s had.

Getting back to the story I decided to have a party and since our house was quite big we were having it at home. A few hours before the party, my sisters, my mom and I were busy running around the house getting everything ready.

It wasn’t easy being raised in a home full of women. All the manly duties came to me. Since my dad ran off with his receptionist it was up to me to be the man of the house. Taking care of the spiders, doing the heavy lifting, dealing with the boyfriends and break ups with the women of the house, that kind of stuff.

As I was running around putting up balloons, my mom, Jolie, was moving things out of the way to make more room. My older sister, Sam, 24, was helping my younger sister Marie in the kitchen preparing all the food. My youngest sister, Sarah, was choosing the best music and trying to avoid work.

We were just like a normal family, we would occasionally fight, break up and make up all the time but for some reason Sarah and I would argue almost every week and normally over the smallest things.

“So, Sarah, what depressing emo crap have you picked out then.”

“Screw you, David, you’re just jealous that I have taste and you don’t.”

To be honest her taste in music was pretty good, but I liked winding her up.

“Here, let me see what you picked.”

As I was looking at the playlist, Mom shouted and asked for my help, so I went back upstairs to her room and I knocked before entering.

“Hey, Mom, what’s up?”

She turned around and walked over to her bag on the bed. As she bent over I noticed how good her ass looked in the jeans she was wearing. Ever since Dad left she kept her body in tip top shape, but hadn’t been on that many dates. I think she mostly went to the gym just to pass time and try to forget about him. He was the love of her life and it almost killed her when he ran off.

Sometimes I felt bad because I looked so much like my dad that I must remind her of him. Mom got pregnant with Sam when she was 16 and got married before Sam was born, then she had me, Marie, 19, and Sarah, 17. Although she’d had four kids and was in her early forties, she could have passed for someone in their late twenties.

“Hi, honey, I forgot to get the beer so I need you to go out and get whatever we need for tonight. Here, you know the pin, right?”

She turned and started walking over to me and again. I couldn’t help but notice the way her hips would sway. She handed me her credit card and I left the room.

I headed back downstairs and went to the kitchen.

“Hey, I’m going out, do we need anything?”

Sam looked up and said, “Yeah, one minute,“ as she went over to the fridge. Just like with Mom I noticed a slight wiggle in her hips as she walked over. I had missed Sam; she moved out about a year ago to her own place and I didn’t get to see her as often as I liked. She kind of looked a bit like Marie, but now that I thought about it everyone in the house looked kind of the same. What I mean is the figure and hair length of my mom and sisters were the same. The biggest difference was that they just had different shades of color.

“Okay, then,” she said. “We need two packs of cheese, some salsa dip, a few bags of crisps and some drinks. Oh and call me before you finish shopping just in case I missed anything.”

“Okay then, see you later.”

I went outside and climbed into my car. As I started it I noticed the front door open and Sarah running out towards me. As she ran I could see her boobs bouncing up and down and I quickly looked away.

What was wrong with me? Why was I noticing all these things? Tina and I had sex often but for the past three weeks we hadn’t. Every time I tried something she told me that see wasn’t in the mood or that she didn’t want to because someone might hear us, so as you could guess I was kind of sexually frustrated.

“Hey, David, Sam says you’re going shopping, can I tag along?"

“I can’t be bothered with you dragging me around the shops while you go shopping for clothes, no thanks.”

I really couldn’t be bothered shopping with her because I knew she took ages, but also because I didn’t want her to see the bulge that had started growing in my jeans.

“For your information I not going shopping for any clothes, I just want to go to make sure you don’t forget anything and to get out of the house before Mom gets me to do some more work.”

******

She walked around the front of my car and climbed in the passenger seat. Well then, it looked like she was going with me, I pulled out of the driveway and headed for town. As I drove I couldn't help but occasionally take a quick look at her chest, but luckily, we got mostly greens and was there in about 20 minutes.

After about 10 minutes we had everything Sam wanted and called her like she asked to make sure she hadn’t forgotten anything.

“Hey it’s me, I got everything, are you sure that’s all you need.”

There was a slight pause as if she was thinking or talking to someone.

“Yeah umm that’s all I can think of, mom says don’t forget the beer.”

“Ok I won’t, see you in about half an hour.”

On our way to the checkout Sarah got a message and said that there was something she did need to get but she would be quick about it.

“I knew there would be something, ok but I’m waiting in the car,” I said.

“Yeah sure, I will be as quick as I can, I swear.”

I decided to get the beer and a quick bite to eat while she ran into the shop, then I headed back. After about 20 minutes I got tired of waiting so I decided to call her and find out what the hell was taking so long.

“Hello."

“Sarah, what the hell are you doing, why are you taking so long. If you’re not back here in 10 minutes I’m going without you and you can get the bus back.”

“NO, WAIT! I umm, I need your help, could you come here for a minute.”

“Fine but as soon as we are done, we are heading home.”

I made my way to the shop she went in; when I got there I could see her in the back of the shop with her back to me.

“So what do you need?”

She turned around in a rush and looked surprised.

“Umm, I, umm, need your opinion on this.”

She just reached out and grabbed the first thing she could which just happened to be a set of black lacy lingerie, she looked shocked but I looked even more shocked, did she really want my opinion or was she just doing this to piss me off and waste my time.

“Sarah, are you doing this just to waste my time and annoy me, because if you are its working.”

“No, I’m just wondering what you think of these, would I look good in them.”

“Stop messing around, we have to get going.”

“There is this guy I like and I’m thinking of getting something that might get his attention.”

Ok now I knew she was lying, I have never seen her with a boyfriend, but there have been a few times when she has come home late and I had wondered where she had been. But I decided to call her bluff.

“Who is this guy, do I know him.”

She looked scared and it took her a while to answer.

“No I, I don’t think you do, but do you think I would look good in this.”

The image of my sister standing there in this sexy black lacy lingerie flashed in my mind and I was lost for a few seconds. I wasn’t thinking straight and I said something before I realised what it was.

“Yeah I think you would look great, why don’t you try it on and see what it looks like.”

What was I doing, why did I say that, a brother isn’t supposed to be like that he should say ‘there is no way in hell you’re going to wear something like that.’

Then she surprised me by slowly making her way to the changing room.

“Ok I think I will, I'll be back in a few minutes.”

She seemed to take ages but eventually she came back out and went over to the counter to buy them, I met her near the door as she walked over towards me giggling.

“What’s so funny?”

“Oh it’s just something the shop assistant just said. Ok, we should be able to go home now.”

“It’s about time.”

We climbed into the car and again, the thought of my sister in that lingerie flashed back in my mind and I started to go hard, I tried to hide it the best I could and set off home.

We arrived home and got the bags of shopping; as I was walking I noticed my sister hanging back but didn’t think that much into it. I opened the front door and I was blasted in the face by people yelling and cheering.

“SURPRISE!”

I was shocked, then I realised why Sarah had taken so long, she must have been trying to buy time while they moved the party sooner, and as I looked around I could see everyone smiling and holding drinks. Even mom was in on this, she must have hidden the beer so I would have to go out to get more. I walked in and started hugging people and shaking hands.

I thanked everyone for coming and hugged mom saying that I can't believe she planned all this, then I made my way up to my room to get changed. As I was going in I noticed Sarah standing in her door way, smiling, looking at me while holding her shopping back. I was about to say something but she slipped in to her room.

After I jumped in the shower I was about to get changed when my bedroom door opened and Tina walked in, she smiled when she noticed I was just wearing a towel and walked over to me.

“So there you are, I’ve been looking for you,” she said.

She leaned into me and kissed me hard on the lips, sticking her tongue in my mouth and sliding her hand up and down my chest.

“Happy birthday, I know that lately we haven’t had sex, you know, as much as we normally do.”

She pulled off my towel and started stroking my now semi-hard dick,

“But I have a good reason for that, and you’re going to get your special birthday surprise tonight,” she giggled.

She started stroking my dick faster and just as a moan escaped my lips I heard a voice and my door opened.

“David, come on, everyone is waiting for you and your sisters baked you a…”

Suddenly, my mom was just frozen in my doorway staring at what was happening right in front of her, she quickly looked down but it seemed she slowed her gaze about half way and walked back out closing the door behind her.

“Umm, just come down when you’re ready, ok,” she shouted through the door.

Oh god I felt like I could have died, my mom walked in on me getting a hand job, and I had to go downstairs and act like it never happened.

“Oh god, oh no, I can’t believe my mom just saw us like this.”

“Yeah, I should probably go apologise, I guess you’re just going to have to wait for tonight for your gift.”

With that said she kissed me hard and then leaned down and kissed the head of my dick and walked out of my room, I was stunned, I couldn’t move, because at that moment I realised what my birthday present would be, I was going to get my first blowjob. I had begged for ages but she always said ‘no I didn’t want to.’

I got dressed and practically ran down stairs to try to find Tina. To find out what exactly my present would be. Just the thought of it kept me hard. When I got down stairs I looked around for her but before I could find her Sarah jumped into my arms wishing me happy birthday. I didn’t know what to do, there was no way I could have hidden my erection, I just waited for her to freak out but she didn’t.

“Hey, happy birthday, sorry about dragging you around the shop.”

She leaned up and kissed me on the cheek.

‘Why didn’t she freak out about the steel rod in-between my legs there was no way she could have missed it, and why did she have her arms around my neck holding on to me so tight.’ I thought.

“Oh, and bad luck that Tina wasn’t able to finish what she started,” she giggled.

“WHAT! How did you know about that, did she tell you?”

“No, mom did, she told all of us.”

“WHAT! Mom told everyone, why, why would she do such a thing?"

“No silly, not everyone, just me, Marie and Sam.”

She released her lock around my neck and dragged me into the kitchen, there were Marie and Sam sat at the table and a few of my friends and family scattered around the room, I went to the fridge to get a beer, still wondering why mom had told my sister when I noticed Sarah had gone over and joined them, as she sat down they all looked over at me and giggled.

‘Oh great, this is the perfect way to start a birthday party, what the hell were you thinking mom’ I thought to myself as I opened my beer and took a huge gulp. I had to find Tina and my mom, as I left the kitchen, again I noticed my sisters giggling at me.

I spent 20 minutes looking around a house packed with people, making small talk and accepting cards and presents, until I finally found Tina and my mum in the conservatory. At first I didn’t know what to do, I didn’t know if I should go straight up and say ‘WHAT THE HELL MOM’ or just wait a bit longer and see how the conversation went. I was about to go get another drink when Tina saw me and motioned me over.

“David, I’m so sorry for walking in to your room without knocking, I shouldn’t have done it and I hope you can forgive me.”

That made me feel a little better.

“It’s ok mom, just remember to knock in future, I’m sorry you saw what you did,” I said while looking down at my feet.

There was an awkward silence between the 3 of us, then Tina made her way to the kitchen.

“I’m just going to get another drink, you want one David.”

“Yeah, thanks.”

If there was a time to talk to mom, that was it.

“Mom, why did you tell them about what happened in my room.”

She looked surprised and stared down at her feet.

“I don’t know, I just saw what you two were doing and it surprised me, I had to tell someone because I didn’t know what to do.”

“And what are you going to do?”

She looked up at me with a strange look in her eyes, I couldn’t tell what is was or what was going through her mind.

“Nothing, you two are both adults, and as long as you’re being safe you can do as you please.”

Again, out of the corner or my eye I could see mom giving me that strange look, it’s not anger or disgust, and I just couldn’t tell what it is. She stood up and gave me a hug and tells me enjoy my party, and then headed off to the kitchen.

For the next few hours I moved around the house talking, laughing and drinking with my guests, by now nearly everyone had a pretty good buzz going on and were relaxed and having a good time.

As I talked to one of my old friends, Marie grabbed my arm and started pulling me to the kitchen.

“Come on, it’s time for you to blow out your candles.”

I entered the kitchen and it was full to the brim with people, on the table was my cake, I leaned down, about to blow out my candles when some guy shouts,...