Jointly
Srimad-Bhagavatam
SB Canto 1
SB 1.2.13, Purport:
Herein the statement of Bhāgavatam is that the highest aim of life or the highest perfection of the institution of the varṇāśrama-dharma is to cooperate jointly for the satisfaction of the Supreme Lord. This is also confirmed in the Bhagavad-gītā (4.13).
SB Canto 3
SB 3.20.11, Translation:
Did they evolve the creation in conjunction with their respective wives, did they remain independent in their action, or did they all jointly produce it?
SB Canto 6
SB 6.16.60, Translation:
As husband and wife, a man and woman plan together to attain happiness and decrease unhappiness, working jointly in many ways, but because their activities are full of desires, these activities are never a source of happiness, and they never diminish distress. On the contrary, they are a cause of great unhappiness.