When I was 24 my 16 year old cousin came to live with me in order to take her exams (her family was moving abroad).
When she had cramps or was otherwise ill I would rub her belly, and on multiple occasions she suggested we watch p*** together.
We never did but I’ve often wondered what might have happened if we had.
Looking back I’m certain that she would have been willing to give me her virginity and I really regret not trying to f*** her when I had the chance.