Mia's turn

"Oh fuck. That was amazing sis." Tracy says when she's finally recovered enough to speak.

"Looks like someone was a little pent up after that shoot." Mia says.

"I think so." Tracy says, biting her lip.

"I think it's your turn now." Tracy says, descending down to her knees as she does so.

Once she's face to face with her sister's pussy, she sticks her tongue out and begins licking her pussy and clit dutifully. Mia's head tilts back as her sister returns the favour, grabbing her breast and squeezing to enhance the pleasure. With her other hand, she continues her dominant role by grabbing her sister's hair and grinding her pussy against her tongue. Tracy takes to her submissive role naturally, probably only being aroused more by the firm grip on her hair.

After a few minutes of lesbian pussy-licking action, Tracy rises from her knees to begin using her hand instead. A few more minutes and she has her sister convulsing from an explosive orgasm too.

"Oh fuck. I'm still not fully satisfied." Mia says, only just coming down from her orgasmic high.

"Me neither. We must be really pent up." Tracy replies.

"Here, I have an idea." Mia says, grabbing the shower head and leading her sister down onto the floor.