He smiled against her neck when he recognized the thought that was fluttering around in her head. Longevity. He didn't pay mind whether she meant the sex or the bond they were developing, but he would try to oblige. He kissed her throat repeatedly as he rocked lovingly against her, pulling nearly all the way out and sliding painfully slowly back in. It was pushing him over the edge. Paired with Betsy's thrusting, he knew he was going to finish quickly. He set forth a more steady rhythm and drew back some to watch her face. Her hair was starting to crimp and wave from the humidity put off by their two bodies. She looked positively stunning.
Brian's chest lowered so that his pecs were pressed against the warmth of her breasts and he cleared his throat softly as he lowered his mouth close to her ear for one last time. "I can't say how much I love you," their heated grunts from moments ago didn't begin to cover it, "but I think you already know." Somewhere through his verbal thought, his breath hitched and his hips froze still. The sweet feeling of his climax moved over his body and to the tips of his extremities. He felt both full of life and love and completely drained. It was amazing.
The feeling of her tightness still around him after finishing was a bit intense, to say the very least, but he wasn't moving until she was ready for him to.