She keeps her eyes on his, licks her lower lip a little, and slowly cups her bare breasts, gives her nipples a squeeze that’s almost painful, and is most certainly pleasurable. Her lashes flutter and she moans *just* so; Bobby near-whimpers, and John reaches over, turns Bobby to face him, and kisses him.
She imagines John’s tongue sliding, slick and oh-so-hot into Bobby’s mouth, can see Bobby’s cock straining against his jeans, and slips a hand down between her legs. Not surprisingly, she’s wet, and when Bobby -- sweet, restrained Bobby -- begins to rock against John, she works a finger into herself; watches with desire thrumming in her blood and wishes she could join them.