Wang Shanshan obediently moved over, and under Wang Yue's guidance, she and her sister leaned in together and used their soft lips to kiss Wang Yue's penis.
Whenever Wang Yue moved forward, they would pull back, allowing his penis to penetrate completely into their mother's vagina; when he pulled out, they would immediately move forward again, allowing his penis, now coated with lubricant, to pass through their four soft, fragrant lips.
In this way, it was as if Wang Yue was simultaneously stimulating both his sister-in-law's vagina and his two nieces' lips. Although the physical pleasure didn't increase much, the excitement he felt was at its peak.
