It also depends on whether the sheep is over the age of consent.

Some sexual acts cannot be consented to - I think the case is "Jaggard": some people who indulged in beating and flogging for sexual satisfaction were convicted by the UK courts of GBH (or was it ABH?) despite the victims' consent. UK law did not recognise the possibility of a valid consent to such things. I think it was the ECHR not the European Court eventually concluded that their human rights had not been infringed.

But I wonder how Laws' actual words would play in the context of a ban on wearing garments that impeded recognition of the face?