I was on the edge of ejaculating when I heard heavy steps coming up the stairs to my room.
I was completely naked, and had myself tied spread eagle on the bed. For the last half hour I had been playing with myself using my free right hand, alternately using my fingers and the loose end of the rope to tickle as much of my body as I could reach. The rope had a loop and some knots tied at the end to make it a more interesting toy. I could loop it over my penis with the knots hanging down between my legs, or snake it around randomly through my chest and belly fur.
I would try to drag the rope up the length of my leg, keeping the knots centered on the ridge as I dragged them from my lower leg over the knee all the way to my groin without falling off. The rope's weight would sometimes pull it off center, where it would brush down the outside of my leg sending chills over my skin, or down the inside between my legs, where it would get perilously close to my bottom or perineum. If it brushed my scrotum it sent a jolt through my body, getting me close to an orgasm. I tried to touch my genitals as seldom as possible to drag out the suspense and titillation, focusing on my ticklish underbelly, groin, nipples, and down my sides. I had brought myself to the edge several times this way, and that's where I was when I heard someone start up the stairs.
In a panic I grabbed the thin white blanket I had by my side and flicked it over to cover my nakedness. It was tucked in at the foot of the bed, so I pulled it taught and let it settle over me. Had I locked the door? Crap! The steps were almost to the top of the stairs.
I looked down to check that the blanket was covering me, adjusting the left side to cover my arm where it was tied over my head. The rope was covered too - good. I put my right hand down over my stomach, trying to look nonchalant as I heard the steps reach the landing. Thankfully my panic and the slow walk up the stairs had given my penis time to fully deflate, so it was tucked down to the right towards my leg, not tenting the blanket.
There was a quick knock on the door, then I heard the knob turn and the door opened.
It was John, my former teacher and coach, now a fellow staff member. After college and student teaching I had come back to teach at my old high school. John had since become the full-time school nurse, no longer coaching, but still teaching a few classes. Recently I had started helping out as staff sponsor on the yearbook. I still did some photography as a hobby, and used the school's dark room for much the same purposes as I had as a student. I generally avoided taking pictures of John, though, still embarrassed about the incident with my errant roll of film.
When John walked in, I was thrilled and terrified at the same time. No matter how many times you fantasize about someone catching you naked or jerking off, your body automatically panics anyway. I could have kicked myself for leaving that stupid door unlocked! All the fun scenarios I had just been using, many of them involving John, fled from my mind. I fought to stay cool, to find a way out of this embarrassing situation.
"I'm sorry," John said, "I was just checking to see if you were coming out to the movie with the rest of us. Are you feeling OK?"
I had a sudden fear that my right side, which was facing the door, wasn't fully covered. I forced myself not to look down and check. The blanket was angling down from my left shoulder, covering my left nipple but not my right, angling down across my belly to my right hip, but I couldn't feel if it was actually covering my hip and butt. Maybe if he was at the right angle it wouldn't be obvious.
"I'm OK, I've just been tired all day. I thought I'd call it an early night." Then I kicked myself again - it was only 4:30. John looked at his watch, concerned, then came over to the edge of the bed and sat beside me. Of course - the nurse had to investigate. He put the back of his hand on my forehead, slid it down to my temple.
"You're kind of warm," he said.
He turned and pulled his knee up on the bed so he could sit sideways and get better access to me. He was so close to me, and only a thin blanket between him and my naked skin. My penis had woken up as he touched my forehead, and his wiggling of the bed wasn't helping. It wouldn't take much for an erection to lift the light blanket enough to make an obvious tent. It was already filling itself up again, lengthening over to the right side and beginning to thicken.
John reached up and took my wrist, tucking his forefinger and middle finger around to check my radial pulse. He left my arm resting on top of my belly, counting respirations while counting a pulse at the same time. For thirty seconds I tried unsuccessfully not to notice his fingers touching my naked skin, rising up and down with my breaths. I tried, and failed, not to think about how my penis was slowly reacting to his touch.
"Sheesh, your heart is racing, and it feels like you've been sweating." He pressed his left hand into my chest hair, feeling the dampness there. That was too much for my penis to take, and it jerked halfway upright. He must have seen the movement out of the corner of his eye, and he looked down to see the growing tent.
I blushed furiously, and John gave a big smile of understanding. "Well, that would explain the racing heart, and your flushed face," he said.
For a few moments he watched the tent going up below my stomach. My penis was under there, bent to the right, filling a little more with each heart beat, the weight of the blanket giving way with each pulse as it straightened up higher, higher, until it was almost vertical. There was no doubt about what was happening beneath the blanket.
John looked up at me with a big grin. "Are you naked under there?"
In answer, my penis, the traitor, gave one last jerk to stand at full attention under the blanket, pulling the right edge that was draped over my hip just enough that it drifted over revealing the outside of my right hip and buttocks.
"I guess so," John chuckled, that deep earthy chuckle of his that I always loved to hear. He stayed on the bed where he was and moved his hand back to his own leg, turning to see what was on display before him.