I always knew that my wife and I were pretty lucky. After 16 years of being together, we'd only been interrupted having sex once (and that was by her college roommate walking in when we weren't actually having sex.) Now, twice in the last week we've been interrupter to the point of stopping for the night. Once for our son who was having serious stomach issues in the adjoining bathroom and last night for a phone call about a family member's health. Last night I was literally lining up my cock to enter her when the phone rang (she only answered it because we never get phone calls that late at night.) Luckily we have enough sex that it isn't that big of a deal, but I now feel for those that are always having their kids walk in on them.