Lily's face turned bright red again, "I don't know... maybe we could... maybe... have sex?"
"Only if you want it," I replied.
"I do want it," she replied, an eager look on her face.
"Okay then," I say, "do you want a surprise during our sex, or do you not want the surprise?"
She thought about it for a little bit, then decided, "I'll take the surprise."
I made a mental wish that contains the surprise, that will take effect right when they start having sex, then I go in on Lily and pull her into me, kissing her passionately. She then returns the kiss and starts taking off my clothes as I take her clothes, and then we get on the couch right there, with her on bottom (because shewas the one that went on bottom), and I positioned my dick over her awaiting pussy, and penetrated her. Then, her tail started wrapping around my leg, while mine wrapped around hers. I started thrustiing into her, slowly reaching climax, and then I made a mental wish to not climax until she did, while I started to feel a tingle in my back. I barely noticed that some wings were growing out of my back, because of how much pleasure I was in. Thhen, we both climaxed at the samme time, and I sprayed my cum into Lily pussy while it clenched around my dick. After the climax, I noticed my wings were fully grown, and so were Lily's wings. After we climaxed, I collapsed onto Lily, and we were both purring like cats while we were panting from our loss of breath. After we regained our energy, I got off of Lily, and wiahed we were all cleaned up.
Llily then noticed the wings on our backs. "WINGS?!"
"Yeah, I thought you would like it," I said.
"I love it!" she cried, "thank you so much!"
"You're welcome, sis," I replied.
"Hey, wanna try out our wings now?"
"Sure," I replied, "but where?"