To please him

"I'll..." Robin sighed, "I'll take the belt Master."

Bruce smiled as he heard her voice, she sounded so defeated and yet so horny. "Good girl," Bruce said as he fastened on the belt. "This new design will allow you to keep the belt on for as long as you want without problem," Bruce said while thinking, 'It also has vibrators to tease you right to the edge without pushing you over.'

Robin whined as she felt the cold steel touch her most sensitive area, Bruce quickly assuaged all doubt in her decision with a kiss on the lips. 'No matter how bad this may feel it's worth it if it means that Bruce is happy with me,' Robin thought as she returned the kiss.

"Now Robin this doesn't mean we're done," Bruce said breaking the kiss, "In fiat I think you've earned a reward." She knew exactly what he meant as she jumped up and grabbed hold of Bruce's cock. 'Someone's eager,' Bruce thought chuckling a bit at the girl.

Robin began stroking Bruce's length, gasping as it grew longer and longer, until it reached it full height. Hearing Bruce moan caused Robin to renew her efforts, 'I wonder if I could, If I could suck it,' Robin thought, 'I've always wanted to, maybe Master would let me.' Robin tilted her eyes up to Bruce's and said, "Master, I hope you won't think your slave is too spoiled if I suck on your cock?"

"Go on slave," Bruce said.

Robin began sucking on Bruce's cock like a natural, until he hit the back of her throat. She was quickly forced to pull away when her gag reflex kicked in.

"I'm sorry Master, it's just so big," She looked up to Bruce.

"If you don't want to suck it I can call Vicki back in here while you watch," Bruce responded.

Robin was surprised as the thought of watching Vicki please her Master aroused her, but no she wanted to suck Master off, it was the best taste she had ever had. More importantly she wanted his cum, the small amount she got from Diana earlier had done nothing to satiate her craving she needed his cum. So instead of answering Robin plunged her head back down onto Bruce's cock, licking and sucking the whole way. Trying to draw out more and more of her new favorite treat, and draw it out she did.

Bruce grabbed the back of Robin's head and forced her to deep throat him as he shot off his biggest load yet, the girl nearly drown before Bruce pulled her off, 'Ok this may be getting out of hand,' Bruce thought as he continued pumping cum out onto Robins waiting face, 'I'll need to start cumming more each day to avoid any accidents.' This got Bruce thinking once again about impregnating the woman he kept as slaves, which lead to him thinking about Ivy, still passed out in the cave. 'I'll go check on Ivy once I'm done here,' Bruce turned his attention back to Robin.

The girl was drenched in his cum and loving it, she was scooping it into her mouth as she moaned. Bruce smiled and said, "Well done slave," he stood the girl up, and could see exhaustion behind the lust in her eyes, "Now shower and go to bed, you've earned it."

Robin pouted slightly but nodded and ran off to the shower, Bruce sighed as she swayed her hips when she was leaving.