They got curious and just wanted to know what a penis felt like inside them. I was so paranoid about getting pregnant while we were together that his penis was only half in and for about 10 seconds max. Im still paranoid about being pregnant. Curiosity killed the cat so I'm just hoping for the best and learning from my lesson. I don't want any kids right now so if I'm not pregnant guess what I'm going to do? Not put myself in those situations :/ :)

It only takes a second - and it only takes the head of the penis.

Half way means nothing, 10 seconds can get you pregnant.

"They" got curious or "you" got curious.

Have you considered a form of birth control?