Lust blew Greed a kiss when he winked at her, this was more like it. He seemed to be having a good enough time and this would be one of the occasions where she didn't mind sharing him since he so desperately needed it. She didn't want to take any chances and sent both girls and Greed himself a shot of desire through their system. Not a ton since she wasn't touching but just enough to help seal the deal. Greed wouldn't be able to breathe because as soon as he stopped kissing one girl, the other girl's mouth would take her place.
Nothing would ever compare with sex with Lust because well, she was Lust. She was the best. But Greed needed to be reminded that mortals were toys in different flavors. And Zoe was a toy he couldn't even taste fully. Lust wanted him to look at the buffet, see the selections, and have some of everything. It didn't make sense to stick to just one, and one he couldn't even really enjoy at that. Oh Greed... whatever would you do without your Lust there to take care of you?