If you're still looking for this. There a couple of scenes (actually a few) with Lexington Steele. Almost anyone with him and Jewel Denyle, one with Marie Silva (Manhammer 1) she has earth shattering orgasm anyway and he makes he cum quite a few times. The first one in that scene was the best IMO. Marie Luv several times in Black Reign 4..one right after the other (I think that was a Lex Vanessa Blue project and she might have more insight on the scene). Quite a few more but another great (multi) orgasm scene he had was with Alexandria Nice....although he was fucking her in the ass when she came.
Anther great scene was with Mark Ashley and Cassie Young not sure what title but he's blasting her missionary while she's spread open on a sofa. She cums really hard and loud...in true 'Mega fashion he keeps blasting fast as she suffers through the sensitivity...then pulls out and eats her pussy while it's still pretty sensitive...she starts quaking and twitching..pretty impressive scene.
Julian...I think I read you weren't too impressed with his performances. But from what I've seen there are few in the biz who make chicks cum as consistently and more often that Julian. Some of his scenes can get pretty pedestrian with the same routines scene to scene but chicks seem to get their moneys worth when they fuck him...I would say a scene he had with Serena South (Young as they Cum I think) where he fucks her on some stairs and she cums at least 3 times and maybe another 2 or 3 times later in the scene.
And his best would be making Cherokee scream (Little Lace Panties

). She may have some of the most non descriptive orgasms in all of porn IMO. But he fucks her missionary on a chair and one of the 3 orgasms she had in that position was first time I've ever seen her explode like that. I've gotta say she's a trooper...even though you can tell she was agonizing over the sensitivity after she came.....she didn't bail out try and stop him from pounding.
Almost any scene with Samantha Ryan lesbo or b/g she's guaranteed to explode.