If you are already RP her being fucked by another, you have already handled the hard part. Using a blindfold is great for RP. Lay her on her back and lay beside her. Whisper in her ear as if you were laying w her as another man explores her body. Run your hand along her body and take time to make sure she is ready and wet for your toy. Have her spread her legs wide and tell her your friend is going to enter her. Warn her that he’s larger than she is use to, but you know she will like it. Start very slow, letting her feel how the larger toy stretches her out. Then fuck her well.
If you want to add in the cuck side, follow up w your cock and let her feel the difference. Once she gets hooked on big cock, she will ask for it often.
