For the guys: Describe the sensation of your penis entering a girl's vagina so that the ladies can know what it is like.
For the girls: Describe the sensation of your vagina being entered by a guy's penis, so that the gentlemen can know what it is like.
Well, I believe in answers, even where there are none, so here's what was said: My Response
So who has a better description? C'mon, impress me...