Gf says my penis is too small

So basically last night, me and my girlfriend were at home. and to make a long story short we were gonna have sex for the first time. the thing is when i whipped out my cock she just looked at it like it was pitiful and said it was too msall. hgow do i make it bigger? i mean i need to fix this problem is there like excerises i can too im like really nervous and hses probably going to tell her friends

lose some fat and work out you fatty.  I used to think I had a 6 1/4 inch dick, after I lost 120 pounds I had a 7 inch dick where 3/4 of an inch was hidden behind fat.  It also got a bit thicker too for some reason.