Would you let a big guy go balls deep?

I'm longer than 7" and thick. Not really into rear-entry positions but quite into penetrating the girl as deeply as possible. There are 2 moments at bare minimum where I will try to go balls deep into her. The first is that first or one of the first few initial thrust into her, The second is when I'm just about to orgasm. If it is my first time with that girl, I usually enter her missionary with her legs down and knees bent, I push hard to get half of my penis into her, then I lift her legs up and slowly push the other half into her till it is either all in or as much as it could go or she tells me to stop, I use that as a guide as to how deep to thrust but it doesn't mean I won't go deeper after that. I may try to go balls deep into her when she is having her orgasm. Usually I do this consciously as in my mind I have it that I'm trying to go in deep into her so she can feel it that her vagina is being penetrated by a big penis. The other time when I'm about to orgasm, I usually push as deeply into her this one somehow or rather I don't seem to have control over it.

7" is not all that much in the overall penis size. I love being screwed in the doggie style position and feeling my partners balls swing forward and slap into mine and he is 10 1/4 inches in length and around 6 1/2 inches thick. So, yeah...

Sure. Typically that would hurt but when sexually aroused, the vagina can basically extend to accomidate any size (within reason). But of course it also depends on the girl. Personally, that's about how big my boyfriend is and I LOVE it when he does that. I think it feels really good. Being on my stomach is one of my favorite sexual positions anyway.

Why not? You have described my ideal size. Not too long, but nice and thick. Now, anything over 8" can be uncomfortable, but it's really rare to find a guy bigger than 8".

Yes 7 to 10 inch is amazing when fully aroused now 12 inch and over can be really painfully if go to deep