I'm just blown away that she really did say that. On what planet is that an okay thing to say?? If my fiance look at me right after we finished boning and said "You know, the only reason you're not the best fuck I've ever had is because my ex's tits were bigger," like...I would cry for days. That's just so far over the line.

That being said, I, too, am a fat girl dating a chubby guy with a similar length penis, and we have two favorite positions:

doggy, because nothing gets ya as deep as doggy,

and this other way that's kinda like missionary? She lays on her back and spreads her knees like you're gonna do missionary, but instead of you laying down with her, you kneel and bring her feet to your chest and lean forward until you can be inside her. It's as deep as doggy but she gets to face you, which is such a bonus.

Again, though, my man, what she said is so super unacceptable and I hope you know that. Don't be afraid to tell her that she pole vaulted over the line with what she said. That's awful of her to say.