To each other, as it happens." Steve frowned briefly; he thought he recognize the phrase, but he couldn't remember where he'd heard it. He vaguely rem...mbered having used it himself, back on Earth.Steve looked at Ronnie and asked, "And how long have you been awake? Why didn't you try to defend my honor from this nefarious seducer?"Ronnie smiled and said, "Long enough to enjoy watching; as to 'nefarious seducer, ' turnabout is fair play. You were pretty seductive to me yesterday."Steve shook his. I didn't want to argue too much so I went to my room, dressed up, and headed for the church. When he spotted me in my clothes (that was quite short) he got angry and decided to give me a spanking before I go.He quickly put me over his knees and started spanking me. It was somehow mild that day without much pain so the whole thing actually turned me on. I got an erection and he probably felt it. I stood up and had to take off my thongs to reveal my penis in an erection.This made him very angry. Never once did she verbally object to my advances. The front of her dress was now fully open to her waist at the same time pulling the dress higher up onto her body. After pulling her bra aside her mouth opened stuttering out an objection. Confused and dazed I couldn’t understand what was up with her, why in hell did she let me go this far. Slumping against her warm body I felt the blood releasing from my dejected dick back into my body.With my head nuzzled up to her ear, still breathing in. She said we were okay so when the end of my cock started to cramp I didn't hold back, I just let it go. I pushed into my sister's hot body and started groaning as muscle contractions forced both cum and air from me. I shot her full with long strong surges of rushing cum while she humped her hips under me. When she felt me relax against her she dropped her legs to the bed, shook her head as if to clear her mind then, “Wow, I just let my brother screw me.” I pulled my unyielding erection out of.