[Sanji just stares for a moment, and sighs. And god, it's a good thing that Zoro is built like a brick shithouse, because with his lack of brains he's not going to catch a lover otherwise.]

No. Now listen, carefully. I'll go slowly. [Ahem.] If you. [Gestures at Zoro.] Tell some asshole man you want to sleep with him. Like, sex. Not in bed. [Seriously considers the good old fashioned o shape with one hand, and his pointer finger with the other for demonstration purpose but decides against it.] And he doesn't want you? He will tell everyone you're an okama! [There.] Does that get the point across?