She decides to join you

Suddenly you hear a hissing noise behind you and look around to see the woman, still in power-armour, still watching you. You had almost forgotten she was there what with how enjoyable the shower had been. More hissing, which you now realised was the armour unlocking itself, especially as the torso compartment folded open to reveal the woman's bare pert C cups. She elegantly slid out of the armour as it stood there and paced towards the shower units. Butt naked and shimmering with sweat, it she was quite the sight as she approached you. Noticing a unsurprisingly large amount of blood was currently redirecting to your groin, you abruptly turn away again, trying to hide your raging hard-on from them.

Wordlessly she steps under the water and turns you to face her, taking the soap from your hand. “We wouldn't want to waste water, and I did work up such a sweat” she finally states as she begins rubbing the soap against her chest, her nipples becoming bullets as she rubs the lather across her breasts. This whole display quickly becomes too much for you to take and you are soon aware of your erection pressing against your shower partner's pelvis. Looking down slowly, you see her eyes widen as she takes in the view of your engorged cock poking her just above her shaved hole. You watch as she bites her lip gently.