"Oh, sweetheart. Poseidon and I have known each other for a long time, even in this lifetime. This wouldn't be the first time I've given him children either," she said casually.

"And... yes. Strange little phenomenon I've noticed. Apparently, when certain members of our ranks are in close enough physical proximity, the abilities synergize with each other, making them stronger in combination than either would be alone. You should see the little Muse, Erato. Hers are apparently quite susceptible to it."