"What are you doing?" Sandra asked me, her voice shaky as she saw how lustfully I was looking at her mature body.

The way her body looked. Damn. Her soft, thick figure, the way her wet shirt clung to her massive breasts, and her soft belly glistening with raindrops made me throb. I just wanted to bend her over right there in the hallway and shove my massive cock deep into her mature asshole.

"Nothing, Grandma. It’s just you interrupted what I was doing with Tiffany," I said as I still stroked my cock slowly, my hand moving up and down the thick, veiny shaft.

I made no attempt to hide it, letting her see every stroke while my eyes roamed over her wet body, watching the rain drops glisten on her soft belly and deep navel.

Sandra quickly put a hand on her boobs over her t-shirt, trying to cover herself. Her nipples were hardening noticeably, poking against the thin fabric, and she clearly didn’t want me to see how her body was reacting to the sight of my naked, stroking form.

Her cheeks flushed deep red as she stood there, one hand on the door and the other trying to hide her stiff nipples, completely flustered by the young, well-hung neighbor standing so boldly in front of her.

The tension in the hallway was thick. Rain continued to fall lightly around us, making her clothes cling even more to her voluptuous, mature curves as I kept slowly stroking my cock, savoring every second of her shocked and aroused reaction.

"Son, you are like my grandson. You shouldn’t be like that in front of me," Sandra said, her voice a mix of genuine concern and embarrassment as she tried to look away from my naked body.

"What do you mean, Grandma?" I asked innocently, though my mouth watered at the sight of her stiff, poking nipples pressing against the wet fabric of her shirt.

"Like this... please wear your clothes. It’s raining heavily, you might catch a cold," Sandra said, caring for me like her own grandson, her eyes flickering with concern even as they kept dropping to my naked body.

"I’ll do that, but I came here to tell you, what you just saw, you don’t need to tell anyone," I said firmly, wanting to make sure she didn’t tell anyone about the filthy rainy sex session she had just witnessed with Tiffany and her daughter.

"Why are you having an affair with an old lady like Tiffany? You should date girls your own age," she said, still trying to lecture me despite the obscene situation.

"I know, Grandma, but I just can’t control myself," I said, gesturing toward my cock that was getting even harder. The thick, veiny shaft throbbed visibly in the cool, rainy air, standing proud and heavy as I made no attempt to hide my arousal from the mature woman.

Sandra’s eyes widened again, unable to stop staring at my massive erection. Her hand remained pressed over her breasts, trying to hide how her nipples had stiffened, while her soft, mature body trembled slightly from the combination of rain and shock.

"I get it. You are young and full of energy, but that was really wrong," Sandra said, looking into my eyes with a mix of concern and lingering shock.

I moved a little closer so she could feel the sexual energy radiating from me up close, my naked body just inches away from hers.

"Is your grandson hung like me?" I asked as I let my cock fall free from my hand. It was so massive and rock hard, hanging heavily between my legs as I stood confidently in front of her.

"What? I would never see my grandson like this," Sandra said, her voice shaky as her eyes kept dropping to my thick, throbbing cock despite her words.

"Yeah, Grandma... that’s why you can’t feel my pain. If you knew how hard it is for me to control myself," I said, my tone low and vulnerable, playing the part of a young man struggling with his desires.

Sandra felt something for me as I acted like I couldn’t control myself. Well, it wasn’t entirely false, I really couldn’t control myself around mature, voluptuous bodies.

The older woman’s cheeks flushed deeper, her breathing quickening as she stood in the doorway, clearly affected by the sight of my massive erection and the raw sexual energy I was giving off.

Her hand remained pressed over her chest, but her nipples were visibly hard under her damp shirt, betraying her body’s reaction to the young, well-hung neighbor standing so boldly in front of her.

A sudden breeze blew again, making us even wetter. Sandra’s clothes got even more soaked and clung to her skin, outlining her mature curves. My naked, masculine body glistened with rain water, every muscle and the thick length of my cock on full display.

"Sorry, young man. I said all those things without knowing it could be something you are struggling with," Sandra said, her voice softer now, a hint of guilt mixing with her concern.

"Yeah, and you know you interrupted me back then. See, I just can’t get it soft now," I said, even though I had just cum inside Tiffany moments earlier. My cock remained rock hard, throbbing visibly as raindrops ran down the thick shaft.

Sandra put her hand away from her shirt and looked at me, her eyes lingering on my erection before flicking back up to my face.

"Why don’t you come inside? I’ll make tea for you. You are already so wet from rain. It’s not good for your health," Sandra said, looking at my cock again and then back at me, her voice caring but clearly distracted.

"Isn’t your husband at home?" I asked, even though I didn’t care. I just wanted to shove my cock in her mature pussy.

"No, I mean... my husband died a long time ago," Sandra said, looking down, feeling sad as the memory clearly still affected her.