Uncovering my sister's intimate encounter with her boyfriend, I capture it for reciprocated pleasure. Part 2

After my previous escapade, I vowed to continue my secret surveillance. As I set up my camera gear, I stumbled upon my sister and her beau in a heated embrace. Their passion was palpable, and I couldn't resist capturing it. I discretely filmed as she skillfully pleasured his manhood, her natural breasts barely concealed by her shirt. Then, she eagerly spread her legs, inviting him to explore her tight, petite form in the missionary position. I observed, recording every moment. As he penetrated her, she moaned in ecstasy, her body quivering with pleasure. The sight of her squirting was a testament to her intense orgasm. I joined them, adding to the mix. The pleasure was mutual, our bodies entwined in a symphony of carnal delight. This was just the beginning of our shared erotic journey.