Luffy is definitely enjoying lavishing affection as much as Sanji is enjoying receiving it. Personal space is more of a suggestion to Luffy anyway, and to have someone who readily welcomes him? He can't get enough.

He tugs off his own clothes as he watches Sanji, eyes roaming over him. "You're so good, it's hard to not get noisy."

He laughs as he starts into the shower. At least with showers, he doesn't have to worry too much about any ill-effects, so it's easy to just worry about pressing himself eagerly into the welcoming body, nuzzling into the line of his jaw, pressing a kiss there.

"Sanji..." A thrill goes through him as he enjoys the brush of their skin.