Snared, Sucked and Slurpedbymanyeyedhydra©
Seed wasn't all she needed. She needed meat, to give her children strong bodies. The human would feel no pain. His mind was already gone, burnt out by the pleasures she'd induced in him.
She curled up and folded inwards. To the outside eye she looked no different to any other boulder lying on the sea bed. Even the coastguard retrieving the wreck of Rob's boat didn't notice she was there.
After a month of lying dormant she opened out like a flower. Her central cavity gaped and a jet of tiny wriggling motes was expelled up into the water column. They formed a cloud spreading out across the bay, each looking for an inviting spot to settle and grow.