Those two red lips, which drank the nectar from her cheeks, alas! when your kisses were pressed upon them.

This couplet paints a vivid picture of passionate love. It describes the lover's lips, which are said to be red and vibrant, 'drinking' the very essence or 'nectar' from the beloved's cheeks. This imagery beautifully conveys deep affection and desire. The poet then exclaims, with a sense of longing or wonder, about the moment when these lips share 'kisses'—emphasizing the intimate and profound connection between the two. It's a celebration of physical affection and the intense bond between lovers.