my boyfriend asked if he could put a picture of me on a site?!

Tell him no.
It is a "soft porn" site.

you need to say NO! And you shouldn't let him have any more naughty pictures of you, since he obviously isn't responsible.

Also, if you are under 18 doing so could get him arrested for peddling child pornography.

Once something goes on the internet you can never truly erase it, it will be there forever for your grandparents and future employers and children to find.

it is a site to post nude pictures and other people will view the pictures and rate how they like it

You can't tell what it is yourself?
I mean, it's kind of obvious lol. I wouldn't let him.

I wouldn't let him but it's up to you, he wants to see what other guys think of you when only his opinion should matter.

Tell him no it sounds like porn

well at least he had the common courtesy to ask first.. but no.. i wouldnt let him..