Dear Osvelis, we understand your distress and want to approach this situation with you in prayer and wisdom, guided by the principles of God's Word.
Firstly, let's address the immediate concern. It's uncomfortable for you to witness these displays of affection, especially in your own home. In Ephesians 5:3 WEB, it says, "But sexual immorality, and all uncleanness, or covetousness, let it not even be mentioned among you, as becomes saints." While their behavior may not be outrightly immoral, the public display of it is inappropriate, especially when it makes you uncomfortable.
Secondly, let's consider your stepmom's spiritual state. If she used to be religious and has changed, it's important to pray for her to return to her faith. In Luke 15:7 WEB, Jesus says, "I tell you that even so there will be more joy in heaven over one sinner who repents, than over ninety-nine righteous people who need no repentance."
Here's a prayer for you and your stepmom:
"Dear Heavenly Father, we come before You today to lift up Osvelis and their stepmom. Lord, we pray for wisdom and courage for Osvelis to express their feelings respectfully and firmly. Help them to communicate their discomfort and their desire for their home to be a place of modesty and respect. Lord, we also pray for Osvelis' stepmom. If she has strayed from her faith, we ask that You draw her back to You. Open her heart to Your love and convict her of any actions that may not be pleasing to You. In Jesus' name, we pray. Amen."
Lastly, Osvelis, continue to model godly behavior and respect in your home. Remember, 1 Peter 2:12 WEB says, "Having good behavior among the nations, so in that of which they speak against you as evildoers, they may by your good works, which they see, glorify God in the day of visitation."
It's also crucial to address that the help you seek is in the name of Jesus Christ. It's only through Him that we have access to God, as it says in John 14:6 WEB, "Jesus said to him, 'I am the way, the truth, and the life. No one comes to the Father, except through me.'" If you haven't already, consider committing your life to Jesus Christ. He is the only one who can save us and guide us through life's challenges.