The next morning Alice and Muriel wanted to watch the boys shower together, but Tony was shy about having an audience.
"You can be in the audience too," Alice said, letting her robe fall open and taking Muriel into her arms. Muriel hadn't bothered to put anything on after their shower, so the bare skin of their breasts mashed together, big brown nipples rubbing, swelling under the stimulation, the neatly trimmed patches of fur on each woman's pubis meshing as they rolled their hips, naked clits touching gently.
"And," said Muriel, kissing Alice deeply, "You don't have to kiss him, of course." The two women kissed again. "Just help him wash up!" Muriel pushed the robe off Alice's shoulders and tossed it on the kitchen table.
Tony remembered the older man's penis exploding in his hand as Staughton talked about touching Alice's body. Had it shot off like that inside Alice's vaj? Or had he and Muriel only "examined" the young girl as proper mentors were supposed to do routinely? So he nodded. He could help soap up another man's penis for the enjoyment of the man's wife and Tony's former mentor. He might even see Staughton ejaculate again: he'd watched erotica, of course, but the only time before this he'd seen a man's real life orgasm was in health class demonstrations.
Staughton's fingers were already pulling at Tony's waistband anyway, uncovering his genitals and smooth, round arse. The girls paused and watched as he took off the briefs and tossed them on the table next to Alice's robe. Staughton's came off last of all and the four of them squeezed naked into the bath: boys behind the glass, under the hot water, girls outside, kissing and touching each other in whatever ways they could think of to titillate the still reluctant Tony.
Muriel wasn't sure what ways those might be, but she knew Staughton. Seizing a fistful of Alice's hair, she pulled her head back and began to kiss Alice's neck. Now, of course, neither woman could see the men, but they knew penises would stiffen in each other's soapy palms as Muriel ran her tongue down between Alice's breasts, then opened her mouth to bite down hard. Not deeply, but imprinting matching half-circles, impressions of her teeth in Alice's soft skin. The girl squirmed and struggled, Muriel pulling harder on her hair and wrapping an arm around her waist to hold her still.