i see no harm in this
There is nothing wrong in doing so. I have a 3 yrs old kid, we booth are working couple. When my kid was 3-months old, she had to join office after maternity leave so we left our kid to his Nani' s house for a week. The same night my wife was having severe pain in her breast due to milk. Initially we tried to express milk manually but it did not help. She asked me to suck and drink it, she got immediate relief. we continued this for 7-8 days till we got settled and my kid was back. We have much more intimate relation than before, she calls me her second baby, I love to suck, tease and lick her soft nipples and before going for action. My kid is 3 yrs old now, I also miss the sweet taste of intimacy I got from my darling.