Safe, adj, from Middle English sauf, healthy
1. Free from harm or risk; UNHURT
2. Secure from threat of danger, harm or loss
3. Affording security from danger, risk or harm

Sane, adj, from Latin,sanus, healthy or sane.
1. Proceeding from a sound mind; RATIONAL	
2. Mentally sound, especially able to anticipate an appraise the effects 
   of one's actions

Consensual, adg, from Latin consensus, consensus
Involving or based on mutual consent