欲界諸天之婬事有五事,四天王天與忉利天之眾生,其婬事與人間界無異,夜摩天則勾抱成婬,兜率天以執手為婬,化樂天以對笑為婬,他化天以相視成婬。
The five methods of sexual intercourse in the heavens of desire; in the heaven of the Four Great Kings and in Trayastriṃśas the method is the same as on earth; in the Yamadevaloka a mere embrace is sufficient; in the Tuṣita heaven, holding hands; in the Nirmāṇarati heaven, mutual smiles; in the other heavens of Transformation, regarding each other.
欲天五婬總目錄(出天台四教義集註) 一地居二天形交成婬。謂四天王天。居須彌山腹。忉利天居須彌山頂。故名地居。此之二天。男女和合。與世無異也。(四天王者。東方持國天王。南方增長天王。西方廣目天王。北方多聞天王也。梵語須彌。華言妙高。梵語忉利。華言三十三。)二夜摩天勾抱成婬。梵語夜摩。華言善時分。此天於諸欲境知時分故。不以形交。但勾抱也。三兜率天執手成婬。梵語兜率。華言知足。此天於諸欲境知止足故。而不勾抱。但執手也。四化樂天對笑成婬。謂此天欲心微薄。亦不執手。但對笑也。五他化天相視成婬。謂此天欲念漸盡。亦不對笑。但相視也。