Master walked in through the front door looking tired and frustrated from his day at work
"I've had an awful day Servant, and I need to get my mind off it. Come show me why I keep you around."
Master walked over to my cage, unlocked the door, and lifted my 3 inch naked body up with one hand.
He really did seem like he'd had an awful day. He treated me well enough most of the time assuming I didn't try to escape or deny him sex, not that I could really stop him anyway. But I had started to grow a liking to Master as well. I found myself, despite all odds, sometimes enjoying giving him pleasure. And if he'd had a terrible day and needed a little pick me up I reckoned I could put in a bit more effort today.
Master kicked off his shoes and laid down in bed still dressed in his button down with tie and black dress pants.
"My dick needs massaging, Servant. And you better pretend like you love it too. I need someone to care for me."
Master pulled down the zipper to his pants and placed me near. He crossed his arms behind his head and closed his eyes in anticipation. I wouldn't have to pretend today. I found myself getting swept up in the passion of the moment. Master needed this. He needed me.
I climbed in through the fly of his pants and soon found myself lying on his cotton briefs, his giant warm cock pressed up beneath. He was only at semi chub at the moment but that could change soon.
I spread out my arms and legs and wrapped them around the bulge. It was comforting. My comparatively tiny cock was fully erect and pressing up against his shaft, something I knew Master loved. I could already feel his cock beginning to inflate beneath me. I started using my whole body to squeeze it tightly to a rhythm like a full body stress toy. It was a lot of work. Master seemed to relax a bit. But it wasn't long before Master was ready for a bit more.
"Enough foreplay Servant, start servicing me," Master said as he unbuckled his belt. He pulled his pants and underwear down to his ankles faster than I expected and I had to leap to avoid being taken with them. I found myself face planting right into his hairy sack.
Master humphed from the pain of my naked body flying into his exposed testicles. "Watch what you're doing down there! It's sensitive merchandise," he whined, though I suspected he secretly liked it given how his cock twitched. And what a magnificent cock it was. It now stood fully erect above me pointing to the sky like a monument to the gods. Thick veins wrapped around his shaft trailing up to a perfect plump mushroom tip.
I tried to stand up on my feet but the sack beneath was uneven ground to say the least and I found myself falling again, this time my face pressing against his bare penis. God I was horny. But this wasn't about me. I was doing this for him, and I was on a mission. I managed to find steady footing on either side of his cock. With my 5 inch self standing as straight as I could, Master's dick still towered over me several more inches. It was going to be a difficult job.
I wrapped my arms around the tree trunk of a shaft, my hands not quite touching on the other side. I began jumping up and down. Slowly at first to make sure I was in a safe position, and to tease Master a bit as well. But as I became more confident I started speeding up. Master began soft whimpering, which then turned into moans. He was enjoying himself. My thighs were on fire from jumping after a while, but still I pushed through to continue servicing Master. Until at the top of one particularly large jump I misjudged it completely, missing the landing and falling down, hard, right on Master's beach ball sized testicles.
"Arrghhh!!" Master sat up in pain cupping me and his balls. "What did I fucking tell you about being careful you little slut?! Must I do everything myself?!"