Starfire learn to take it

" Sister, I'm need you to suck on this." Said Blackfire, smirking.

Starfire was blindfold, so she did know what Blackfire what her to suck on but she nodded. Blackfire smiled, as she grabbed Starfire's hair and gently pulled her up.

" Open wide." Said Blackfire, in a sulrty tone.

Starfire did as she was told, then with a single thrust she rammed the dildo into Starfire's mouth. Starfire started sucking, as Blackfire smiled. She was surprised how good Starfire was at this, maybe she got a lot of practice with Robin, she thought with a smirk.

" Now lick it." Said Blackfire, smiling.

Starfire nodded, as she pulled back and started licking the dildo. After several minutes, Blackfire had enough. She told Starfire to stop, then she gently grabbed her and soon Starfire was bend over the bed.

" What's next is a very important bonding moment for sisters. So I need you to just take it." Said Blackfire, grinning.

Starfire nodded, then with a smirk. Blackfire rammed the dildo into Stafire's pussy, Starfire let out a scream of pleasure. Blackfire fucked her sister, she even slapped Stafire's ass a few time. Blackfire was having the time of her life, she couldn't believe her sister had let her do all this to her.

Starfire was moaning, she was lost to lust. She begged Blackfire to continued, after ten minutes Starfire couldn't take it anymore and climaxed as she screamed her sister's name.

" That was amazing sister." Said Blackfire, as she pulled out of her sister.

Starfire was panting, as Blackfire patted her head.

" Now, this is the last bonding excercise for now, but tonight I have a special one planned." Said Blackfire, caressing Starfire's hair.

Starfire nodded and said she couldn't wait. Blackfire grinned, as she untied her sister and told her to take a shower and then rest. Blackfire left her sister's room, with a big grin on her face. She couldn't wait for tonight, she was going to have so much fun with her sister.