Hand job then oral at a later date
Not counting masturbation, lots of oral foreplay for both of us and then intercourse with first high school GF. No condom and she said “You have to pull out” and I did and came on her belly. Then we cleaned up, went to the kitchen in her parents house and had Campbell’s Cream of Tomato soup before heading back to afternoon classes. I do remember having the smell of her pussy on my face during afternoon classes. Soooooo long ago.
Well, if touching boobs is considered a full-on sexual act, then I imagine that's number one for most straight men/boys. The first time I had actual sex was in the tenth grade. I'd turned 15 just a couple weeks earlier. We had a day off of school and I got a ride to the home of my girlfriend of a few weeks. She was folding laundry on her bed and we took advantage of having the house to ourselves right there on a pile of clean clothes.