wow amy... you're gorgeous. Well this has happened to me before ... if i just go too hard with some i'll bottom out and some girls have said it feels like getting hit in the stomach. But there have been others that could take it all no problem. I'm definitely not the biggest guy here though. funny thing is... the shortest girl i've dated (5'1) could take it all... and the tallest (5'11) could not, i always had to watch myself with her.... i didn't expect that! So i guess there's obviously no correlation there lol