Mahabharata 13.43.22

एता हि मनुजव्याघ्र तीक्ष्णास्तीक्ष्णपराक्रमाःनासामस्ति प्रियो नाम मैथुने संगमे नृभिः

etā hi manujavyāghra tīkṣṇāstīkṣṇaparākramāḥnāsāmasti priyo nāma maithune saṃgame nṛbhiḥ

Our plain-language meaning of this verse is waiting for scholar review.