Cathy Bs, a voluptuous vixen with ample bosoms, was indulging in a solo session of self-pleasure when her boyfriend interrupted her. He had a special surprise for her - a girthy cock that he wanted to introduce to her tight rear entrance. After a quick soak in the tub, the eager beauty was ready to take on the challenge. As she lay on her back, her partner positioned himself behind her, his fingers exploring her forbidden territory. The anticipation was palpable as he stretched her, preparing her for the grand finale. Finally, with a deep breath, he plunged his throbbing member into her, causing her to gasp in ecstasy. The sight of her partner's substantial end entering her backdoor was too much for her to handle, and she could feel herself on the verge of release. As he continued to thrust, she reached her climax, her body quivering with pleasure. The sight of her partner's seed filling her was a testament to their passionate encounter.