I agree with Meggsy, the smell of an aroused woman's pussy turns me on anytime, no matter what condition I'm in, even if I just came, I'd be horny; it's an aphrodisiac.

Took my girlfriend to FL to the beach and the first half hour in the hotel room she was so horny we did it on the floor in the huge walk in closet. Again in the shower after we came back from the beach. It was also the first time, that night she had ever sat on a guy's face and had an orgasm. It's wasn't her last time.....
Had a blind date with a young Latina and she thought I was too old for her, but we had such a good time at dinner that she let me take her home and did a 69 with me. She was impressed with how long I lasted because she knew what she was doing. I was impressed with how long I lasted for the same reason but she was so hot I wanted to keep licking her forever!!!!
Even with a woodie in the morning it's difficult to pee until it subsides a bit. As for using a semi soft to pee in or on a woman, don't know about that but I'd do it if she wanted me to. Not into receiving on my body but with the right woman and circumstance she could make me drink it
I have been lucky enough to have had a threesome with two women but it was only for a few hours during the day. My favorite fantasy would be to be with two or even three women over a weekend at least, and whenever any of them wanted, we would have sex, any kind of sex they wanted. I am fairly experienced at having my release denied at length, and that would make it perfect, unless their overall goal was to drain me, sigh....
I was with two other guys in a restaurant and the dividing wall next to us was half wood, top half glass. A couple sat over there and the guy just sat there eating while she sipped a drink and talked dirty. She was like, "When you take me home, I'm gonna ride your face until you come in your pants. I'll suck you off until you're ready and horny and then I'll make you eat my ass." And a few other things.
When they got up to leave, the guy had a huge boner in his pants and all three of us did too!
All too often when I use a male character, I feel "he" takes a different path sometimes during the story, differently than I had planned, maybe because it just feels the circumstances warrant a change of plot. But when I put myself as the character, it is easier to stick to the plot.
When I was 17, I woke up one night hearing my Mom moaning. I peeked in their door and saw her sitting on my Dad's face, obviously enjoying it. His erection waved in the air like he was having the best time. I was mesmerized even though they were my parents and I watched until she almost smothered him with her orgasm. I couldn't watch any more; I went to my room and took matters into my own hands so to speak.
There are times, particularly when I get lonely AND horny that an idea or theme will come to mind an I try to write about it. To take a sex act and work it into a story where it will be applicable just doesn't work without the right characters and a plot. Then it gets frustrating and embarrassing that I even had such a decadent idea. So I trash it and move on, basically rarely writing.