"Mom knew from first hand (well, actually 'first cock') experience how thoughtful a lover her own brother could be. Just the perfect guy to initiate her (or, if they ever dared to take the paternity test, perhaps their) daughter..."
""You tease!" she chastised him, slowly letting the safety vest slide from her naked shoulders. All the while keeping an eye on the boat far out on the lake, where her husband and daughter thought themselves unseen. But the gently rocking of the boat gave away what happened there. "Here, son, come to your mom. No need to let your dad and sis have all the fun!" They had plenty of time for some fun o their own."