You take "Sophia" from behind

"Get on your hands and knees, Sophia," you order and she quickly obeys.

You both know that from behind it's very easy to give into the fantasy and believe that you really are fucking Sophia. You get off not only on imagining fucking Sophia, but also that Emma can get off knowing you want to fuck Sophia.

You dick slides right in her hole in one smooth motion.

"Oh, John! You feel so good. Please tell me you'll never stop fucking me!"

"Sophia. Sophia, I've never felt pussy as tight ass yours, why would I ever let you go?" You slap her ass, which is covered by the real Sophia's panties, pulled to the side of course, still.

"But, what about Emma?" "Sophia" asks?

"Emma doesn't need to know. We can fuck behind her back. She'll be my girlfriend and you'll be my slut."

"Yes, I'll be your slut, John."

You continue fucking, continuing the roleplay the whole time. You fuck "Sophia" until she comes and when she does you repeat, "Yes Sophia. Come for me Sophia," as she orgasms.

When you're about to cum you pull out, announce your attention, jump off the bed and "Sophia" quickly gets down in order to let you unload in her mouth. Her lips wrap tightly around your cock as you hold her head, which is still covered by the Sophia-like wig as she takes your semen directly into her mouth. She chokes just a little but doesn't miss a drop and swallows it all with a smile.