You're not wrong. I thought I saw the same scene and it is longer, and it is as I remembered and you described. He sucks the guys, including Ben, and there is a tall lanky guy but it's not Mark Sloan. You guys can thank me later.
There used to be another video featuring Ben English on Brendon Marley's site; although I'm not sure he's credited with that name in it.
It was him with a woman and Brendon Marley licking Ben's ass while he fucked around with his female partner (that's what the screen-cap showed on the website, anyway). I didn't know the scene existed until I was a member of a yahoo group years and years ago, dedicated to Str8 men going bi and gay; and a very brief clip from the video was posted to members with Ben standing with his back to the woman and ordering Brendon to kiss his cock, with Brendon obliging (actually sucking in Ben's entire cock-head), with Ben moaning and saying thank you in response. That's what sent me off in search of the whole video on the likeemstraight website.
It seems to have disappeared from there, though. Unless I've overlooked it. There are pages and pages of videos there to scroll through.
The only one that seems to still be available is the one you've posted excerpts from here; that's if you specifically search for Ben English on there.