"Missionary position"

I say without hesitation.

Millie looks at Ashley, Ashley looks back at Millie, and without a word being exchanged between them Ashley stands up, the strap-on sliding out of her pussy, and she walks over to the bed.

Ashley climbs onto the bed, lays on her back, and puts her legs high in the air. Millie walks up to her with the strap-on in her hand, rubs it on Ashley's pussy lips for a while, then slowly slides it in.

Ashley lets out a loud moan as the strap-on stretches her pussy, her hands reaching up to touch Millie's big tits. Millie slowly slides the strap-on in and out of Ashley's pussy, but soon she puts both of Ashley's legs on her shoulder and starts fucking her harder and faster.

Ashley is moaning with pleasure, throwing her head back and forth, her hands squeezing on Millie's big tits. Millie is really giving it to her good, fucking Ashley so hard that her perky tits are bouncing back and forth insanely.

The sight of this is almost enough to drive me insane with lust, but I do my best to not be too obvious about how horny this is making me. Nevertheless, I decide to get up from my chair and stand closer to the two women fucking each other.

Millie and Ashley are so pre-occupied fucking each other that neither of them notices that I am approaching until I reach my hands around Millie, cupping her tits, pressing my hard dick against her ass.

Millie slows down the pace she is fucking Ashley, cranes her neck backwards and kisses me, then says: "Well, hello there."

Millie has stopped fucking Ashley with the strap-on, but I use my hips to push Millie's hips forward, so the strap-on is sliding in and out of Ashley's pussy as my pushing shifts Millie's hips forwards and backwards.

Millie's hands reach for Ashley's tits, and she massages them slowly. She then leans forwards and kisses Ashley, and I can see the tongues of mother and daughter meeting for a while. Millie then leans back up, reaches her hand behind her, pulling my head forwards, then cranes her neck so she can whisper in my ear:

"Matt?"

"Mmhhmmm?" I whisper back.

"I want you to fuck me in my ass." Millie whispers.