Well Mayyyyyybe

Gwen stands there contemplating as you stand there under the water waiting for an answer. You also were debating the decision if this was such a good idea being that you were still very much turned on. Before you could retract you offer you felt the curtain open and Gwen slip in behind you. “Move up a bit. I need some water.” she says. 'Oh boy' you thought

You oblige and moved a bit further in so Gwen could claim some of the water of her own. The shower wasn't the biggest so it was difficult to move around in. You basically were within inches of each other and you could feel her new cock brushing up against you. The thought of her cock so close to your aching pussy made you pulse. You turned your back to her in a panic as you felt you pussy start to ache even more. 'Oh crap'.

“Can you hand me some soap.” Gwen asks completely mater of factually. Like she didn't even care you both were naked . You are trying to not turn around in fear of what you may do. You just want to get out of the shower as soon as possible however you are stuck in place do to a mixture of lust and comfort. “Just give me a minute. I'm almost done.” You roll your eyes and sigh.

Gwen gets impatient and decides to just grab the soap that's in front of you. She moves closer and reaches over your shoulder . As she does she her semi-hard cock pokes you from behind startling you a bit making you jump causing Gwen to drop the soap.

“Crap I'm sorry. Gwen you need to keep that thing away from me.” You say. You reach behind and without really thinking gasps Gwen's now hardening cock out of instinct. You freeze.

“Hey what are you doing?!” Gwen is now the one who jumps at the intrusion. She looks down and sees your hand enclosed around her cock. You were still fascinated by it. Something within you wanted to touch her. Someone else's cock and it excited you. You weren't sure why by it turned you on so much to play with it. Gwen was breathing heavy as you started to move her hand back and forth sending pleasure rippling through her sister. Gwen was bewildered why she was already aroused after cumming so much already.