I stumble upon my stepmom's bathroom and expose myself, initiating self-pleasure. She remains unaffected but later reveals her desire to view and assist with a handjob

I stumbled upon my stepmom in the bathroom, and, in a moment of impulse, I flaunted my throbbing member. Initially, she remained indifferent, but as I began to pleasure myself, her curiosity piqued, and she eagerly indulged in my amateur show. This innocent encounter escalated into a steamy encounter, fulfilling my forbidden fantasy.