STEPSISTER (18) SEDUCED IN THE SHOWER?!

My stepsister actually just wanted to spend the night with me for the first time today. I'm completely alone with her and show the shy teen the bathroom. She wants to take a shower, but I just go with her and strip nude. I just want to help her and show her how to turn on the water and where the shampoo is. But she doesn't seem to be averse and then I kiss her passionately. She starts to moan softly and gets horny. I let the warm water run over her nude skinny body and lather her up with shampoo. I'm very thorough and wash her wet pussy and small tits. You can feel how wet she is between her legs and I massage her wet pussy. I want to finger her horny and she also wants to touch and pamper my pussy. We get wetter and wetter and moan more and more. Will we both experience a hot lesbians orgasm in the shower today?