Exactly when and how is consent given?
Going down this ethical train of thought, one could argue that sexual intercourse only implies consent for sexual intercourse, not consent for reproduction. If the requirement for consent implies a requirement for a written contract, then consent for sexual intercourse does not imply consent for reproduction. If the requirement for consent merely implies a requirement for a lack of coercion and allowing people to continue on with what they have found along the path of life, then surely one should be allowed to make do with the barber's garbage.
Eventually, the discussion should stop revolving around consent and start revolving around commitment. Women should have a right to expect men to decide whether or not to make a commitment by a certain deadline, and should have the power of the courts to hold men to that commitment, should it be made. And nobody should presume that celebrities are making a commitment (of any kind) to anyone who decides that a celebrity's trash is their treasure.