It is Makroo not Halal or Haram , a thing which causes harm to your body is strictly haram in islam such as Diet coke , Coke ,Cigarette and its variants , Excessive use of Alcohol which can make a person loose his mind, breast milk is for the infant but incase if it is not required by the infant as he has out grown his age it can't be ruled out haram for the husband to breast feed on it beside it can't harm your body . If any one has some hadith regarding breast feeding saying its haram do quote it .. Saying haram doesnt make it haram quote the reference.
And one should please his opposite sex by any means necessary to do justice , anal sex is not allowed and sex during menstruation is not allowed . Foreplay is highly promoted in islam before having sex .. Breast feeding comes in foreplay . But one can't rule out that it is haram , it might be considered Makroo .. Saying haram doesnt make it haram quote the reference.
And one should please his opposite sex by any means necessary to do justice , anal sex is not allowed and sex during menstruation is not allowed . Foreplay is highly promoted in islam before having sex .. Breast feeding comes in foreplay . But one can't rule out that it is haram , it might be considered Makroo .. Saying haram doesnt make it haram quote the reference.