She couldn’t reply, her voice too wrecked, but closed her hand more tightly in the water. A watchful little part of her mind reminded her that this was not a good time to go all the way. Instead she scraped her nails down his back and kept her head bent back for him.
Wanting to go further but not at the moment, he vowed to ask her about it later, perhaps when they were in a bed or at least somewhere a little more comfortable, Isaac mewled and inched his hand down her body, eyes locking with hers. “S-Summer…” he croaked out hoarsely, sealing his lips around her neck to suck on her flesh, as his fingers teased the inside of her legs once more.
His movement to torment her meant she had space to stroke and tease /him/, and she did, eyes slipping shut so she could picture what she was doing more clearly. She shivered again, burning, but determined to make him break first. Harder strokes now, and longer, tighter, closing her hand over the tip to make him cry out again.