if ur not happy with 7, go fuck urself! just kidding! lol
i used to be concerned about penis size but after i had some really hot sex with very handsome guys who were not concerned about my 5 inch dick, i felt a lot better. when a guy really wants some dick, your size doesn't matter, and 7 should satisfy any guy who isnt a total whore pig slut. a lot of men are more attracted to manliness than dick size. when two metrosexual-type gay guys hook up, dick size may be an issue becaue neither is very masculine, But if you have the attitude, the swagger, the self confidence, and you know how to treat your partner right (and you dont' talk in a high squeaky voice or walk limp wristed), then your oral or anal bottom will be forgiving if your dick is not a jumbo sausage.
as for enlargement, many guys use vacuum pumps (probably more straight men than gay men), but they add only one inch or so. today, they are mostly used for erectile dysfunction. an absolute no-no is penile enlargement surgery- i've heard so many terrifying horror stories about that butchery (it should be illegal), that no one in his right mind should have it done.