Brian wasn't selfish. Not entirely. So it was when his sister's arms moved around his body that he began shifting his hips in a different manner - one that caused him to shift up and down inside her instead of in and out, and he began rocking them in a way that allowed them both to get the most out of the sensations. Honestly he was still trying to wrap his mind around what exactly he was doing. His sister, of course, but beyond that. He was riding a roller coaster of ecstasy and before long, he was going to reach the highest peak. He felt so in tune with the goddess under his frame that he thought she could make him climax with her mind alone.
When she deepened the kiss, his followed suit so that they were interlocked in every way possible, arms embracing, legs entangled, hips to hips and tongue against lips against tongue. It just felt nice to taste her. The soft, moist sensation of her mouth against his caused shivers to go up and down his spine and for his hips to jerk harder and out of rhythm against her. He drew back all of a sudden and breathed out heavily, "Oh, Bets," his lips moved against hers with each syllable spoken, "It's never been this way before." He'd never felt anything like this.
Brian lowered his cheek against hers while he breathed the words against her cheek and ear, "I love you." And while he kept his left arm below him for support, his right began to trail up and down the curve from her waist to her breasts. The feel of her was enough to madden him, and it wasn't before long that his hand was grasping and clutching and grating along the soft skin of her side and belly and breasts while their hips clashed together. His mouth found the side of her throat and he kissed passionately without a thought in his head about skill or pleasure. He just wanted to worship her. His left hand turned so he could entwine his fingers in her hair while he kissed from her jaw to her collarbones, "Can you," gasp, lick, "finish this way?" he wanted to make sure she got what she deserved. And when he spoke the word 'way' he pushed his hips in a circular motion, allowing his length to reach new territories within her.