Bbw shy wife

My wife is so shy,I only get to see her naked by **********s yet i think she has great tits,so i film her then post her out so others can see her,she likes me to go down on her but will not do the same,so the only way i get her to eat my cum is by jacking in her drinks or her food or best when she has had a drink and is a sleep i get it right in to her mouth, all her sisters get the same treatment when they stay over, i don't think i have it that bad.