Rasamanjari 9.13

9.13

kṣaudreṇa ca samaṃ pṛṣṭaṃ puṇḍarīkasya keśaram /
dhvastaṃ kuryāttato meḍhraṃ ratyanyatrāpyasaṃśayaḥ //

And the filament of a white lotus ground equally with honey / makes the penis fall limp thereafter, even in sexual intercourse elsewhere, without a doubt.