Why does my GF grab my fat when we get close(10 points)?

Dude, it sounds like you've got her hook, line and sinker. She probably holds onto you because she likes it. If it doesn't bother you then don't bring it up. She may be embarrassed if you ask her, because sometimes they don't know that they are doing it. Just enjoy the relationship and keep treating her well and you'll never have to worry about her losing interest by the sounds of it. I'm kind of jealous that you accept yourself so willingly. I match your physical description but I'm 6'2" and covered in hair lol. Enjoy having a hot, young gf...make us fat guys proud!