So basically I am having trouble bottoming in some positions. During my first time I had sex with a guy that had a 20 cm thick dick and I had no problem whatsoever getting it in, it just fell natural. Lately, I've had sex with my fuck buddy and he has a thick dick but not as large as the previous one. The problem is that in some positions like the doggy I feel pressure on my lower left abs. It is not pain, it's just an annoying pressure and I have to change positions. The other position I feel this pressure too is when I am lying face up on the bed facing him with my legs up and he fucks me on his knees.