In the heat of the day, I find myself alone with my tia, her presence always a temptation. She's oblivious, lounging in her tangas, the fabric barely containing her curves. I can't help but stare, my cock twitching in my pants. She catches me, her eyes widening in surprise, then a sly smile spreads across her face. 'You like what you see, don't you?' she teases, reaching out to stroke my bulge. I groan, my resolve crumbling as she guides my hand to her tangas, wet with her desire.