She kisses you on the cheek. She's so loving and affectionate. You embrace her and start kissing her. And she starts to take your clothes off.
As she pulls down your pants you start to wonder what she's going to do to you. Normally she would be opening her legs, but there's nothing to open them for. You feel weird having her see you without a dick, but of course she doesn't mind.
She starts caressing your crotch, it feels odd without a dick. And eventually she kisses your clit, giving you a confusing mix of arousal and anxiety. Then she takes out her fingers.
She puts both her fingers inside your vagina. It feels so weird and wrong just to have an opening there, even stranger to be penetrated. This is a feeling completely alien to anything you've felt before. But all that said it feels very good. It's a pleasure that you've never felt before, a strange and alien sensation building inside you until you come to a powerful and helpless orgasm that feels like nothing you've ever felt before. It just keeps going and repeating for minutes on end.