The weekend passed uncomfortably for Kaley. She'd managed to avoid witnessing Amy frigging herself Saturday night by staying up long after her sister had gone to bed, but had gone to the bathroom the next morning just as Amy was coming out, dripping wet from her shower; small towel wrapped around her pert breasts, showing off her supple, pale legs.
Kaley's breath caught in her throat and she barely managed to return the 'good morning'. She darted into the bathroom, turned the shower on full and stripped like her pyjamas were on fire. As soon as the hot stream touched her skin, she plunged her hand down to her crotch and came hard and fast. She sank to the floor on shaky legs, breathless and quivering, absently rubbing her still pulsing clit. In no time at all the sensation returned to her pussy and she lazily brought herself back to orgasm, biting her own hand so as not to moan too loudly.
That night was hot and humid. Kaley again held off going to bed, despite knowing she'd be exhausted at college the next day. It was 1am when she finally switched off the TV in the den and went to her room. When she entered, she was presented with the sight of her sister, lying on her back, her sheet folded down to her waist, her nipples poking through her thin vest, beads of sweat coating her skin, her flat stomach shimmering in the moon light. It was all too much.
Standing by her sister's bed, Kaley removed her pyjama pants and casually kicked them across the room. Her right hand shook as she reached up and under her vest and lightly stroked her hardening nipples, then down her stomach to her damp panties. She bit her lip hard and dipped her hand beneath the elastic, immediately finding her erect clit and rubbing it ever so softly for fear of sending herself into an uncontrollable frenzy.
