Sliding into Ashley's ass

I look at Millie, not sure if I have heard correctly, so Millie says:

"You heard me, fuck her in the ass." She pushes the condom into my hand.

I look at Millie, then open the condom and roll it on my dick.

"Did you get lube?" I ask.

"You're going to fuck her in the ass without lube." Millie replies.

Ashley starts to squirm, but Millie has her firmly pinned down, so Ashley says: "No mom, you know I hate anal!"

"Oh, I know" Millie replies "you are not supposed to enjoy this".

"Mom, I am only 19 and not experienced with anal at all." Ashley whimpers.

Millie does not respond, instead points at Ashley's ass, so I move forward and use my hands to spread her ass cheeks. Ashley's ass looks so nice, very pink and very tight looking.

"You told me you tried anal before?" Millie asks Ashley.

"No, I just said I tried anal to annoy you!" Ashley shouts.

I am starting to push my dick against Ashley's ass, her whole body tenses and she tries to squeeze her ass cheeks together when she feels the intruder start pushing against her ass.

Millie is using both her hands to pin Ashley down, and moves so she is sitting on Ashley's back. Ashley is now bent over the arm rest with Millie sitting on her back, she cannot wiggle out from this.

"So this is your first anal experience?" Millie asks Ashley.

"Yes!" Ashley whimpers.

"Well, with a nice ass like yours, it was inevitable that you would end up getting fucked in the ass sooner or later." Millie replies.

I am still pushing my dick against Ashley's ass, but the combination of no lube, her tightness, and her trying to clench her ass cheeks shut makes it very difficult for me to push in. I increase the pressure, and I now slowly feel her sphincter start to give way.

Ashley must be feeling this to, since she whimpers:

"Please don't fuck my ass Matt."

I don't reply, instead I increase the pressure, and am finally able to push past her sphincter muscle and my dick slides into Ashley's unlubed virgin ass.