Sindra's eyes went wide at the sight of that cock, "What.. is..", she had seen cocks once before, but.. but never like this. She gulped softly, she wasn't a virgin, her first trainer had claimed that from her, "..that..", she mumbled softly. Her eyes closed for a moment as she pulls her face away, before staring into his eyes. "..Another.. another challenge", she said softly, her body rising and falling, her beautiful breasts moving along with her breathing. "..whoever.. can get the first one to climax first.. if I can get you off.. you'll let me go.. otherwise.. I will stay.. with you", she said, gritting her teeth. This.. shouldn't be too hard.. difficult..