I have a new sexual partner and he is the largest dick I've ever had (I'd estimate about 6/7 inches long) and have had some discomfort during sex, specifically during doggy/backshots. I am petite (5'3" and 110 pounds) and said he has not had this issue before but that I am also the smallest girl he's been with. I am wondering if maybe it's the angle so maybe there are better positions to try or if my vagina just didn't have enough time to stretch and accommodate him (there wasn't much foreplay). Any advice or suggestions would be appreciated, I'm not very experienced and do enjoy sex with this partner and would like to work through this issue.