Lana looked up at him as he fought to hold back as long as he could.
His legs started to tense, but he was not willing to let her win. His hand continued up and down the length of his shaft and he could feel her tongue slip along the underside of his cock now and then. Her mouth started to water, and she felt herself get light headed, half out of nerves and half out of knowing full well she would have to see it through.
This was the pinnacle of their competitions in the form of a game of ‘chicken’, to see who would back off first and avoid crossing that line and push their relationship further than either of them ever thought possible.
Lana let out a soft breath, warming the head of his cock, determined no matter what, not to back away and let her brother win.