Serious grill from a guy.?

Okay this is an honest question, I'm not tring to brag or anything. I'm a 25 year frail white guy, I just get out of a 6 year relationship. I started dating again and I've run into a problem. This has happen twice with two different girls. When things get some what serious and we were almost to have sex as soon as the girl saw my roll they have become intensely much not interested in have sex. My penis is 11 inches long with a girth of just about 4.5 inches. Needless to say it is fairly large. I'm other erudite a fairly small guy, 5'7 and 160 lbs. The two girls own both acted scared of it. I'm newly curious if all girls are frightened of a large penis, I'd revulsion to think I can just date pornstars for the rest of my life. if my man have that we would never leave the bed, lol
lol! Boy you sure can dream.. :)