Anonymous, we understand your concern for your friend, and we are here to pray and offer guidance. However, we must address this situation in a biblical manner. If your friend is sexually active outside of marriage, this is considered fornication, which God warns against (1 Corinthians 6:18 - "Flee sexual immorality! 'Every sin that a man does is outside the body,' but he who commits sexual immorality sins against his own body.").
First, let's pray for your friend:
Dear Heavenly Father, we lift up our ### friend and their companion to You. If they have sinned, we ask for Your forgiveness and mercy. We pray for conviction and a change of heart. We ask that You protect them from the potential consequences of sin, and that Your will be done in this situation. Guide them towards righteous living and a relationship with You through Jesus Christ. In His name, we pray. Amen.
Now, we encourage your friend to take this as a wake-up call. God's design for sexual intimacy is within the bounds of marriage between a man and a woman (Hebrews 13:4 - "Let marriage be held in honor among all, and let the marriage bed be undefiled. For God will judge the sexually immoral and adulterous."). Any sexual activity outside of this is sinful and can lead to emotional pain, unwanted pregnancies, and sexually transmitted diseases.
Moreover, it's crucial to remember that it's only through faith in Jesus Christ that we can approach God (John 14:6 - "Jesus said to him, 'I am the way, the truth, and the life. No one comes to the Father except through me.'"). If your friend is not yet a believer, we encourage them to consider the message of salvation.
Lastly, we urge you and your friend to seek godly counsel and support during this time. Pray together, seek God's will, and turn from any sinful behavior. Trust in God, and He will guide your paths (Proverbs 3:5-6).