I and the Messenger of Allah ﷺ took a bath from one vessel which was placed between me and him and he would get ahead of me, so that I would say: Spare (some water for) me, spare (some water for) me; and she said that they had had sexual intercourse. (Using translation from Muslim 321d)
كُنْتُ أَغْتَسِلُ أَنَا وَرَسُولُ اللهِ ﷺ مِنْ إِنَاءٍ وَاحِدٍ بَيْنِي وَبَيْنَهُ فَيُبَادِرُنِي حَتَّى أَقُولَ دَعْ لِي دَعْ لِي قَالَتْ وَهُمَا جُنُبَانِ