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The Lustful Curse Mark: Reincarnated Princess Is Broken by the Trusted Magician's Commanding Sex

[Synopsis]

Princess Claire of the Kingdom of Lastnaldo was deeply troubled about her nation's future as it teetered on the brink of war, accompanied by her loyal court magician, Lloyd.
As the threat of war grew closer, a marriage proposal from the prince of an allied nation was brought to Claire's attention.
For the sake of her kingdom, Claire resolved to suppress her feelings for Lloyd and wanted to accept the proposal. However, out of nowhere, a deadly curse mark appeared on her body.
The only way to break the curse is through Lloyd's healing magic, but---

"Don't you realize? This is your fault. There's no way I could let you belong to someone else."

Lloyd, unable to contain his obsessive desire for Claire as she prepared to leave the kingdom, as a result, unleashed his emotions with his honed, powerful body.
And Claire, with her delicate frame, struggled to withstand the brunt of his wild, unrestrained feelings---

"Now, Claire, I’ll show you exactly who you belong to."

Characters

1- Hero: Lloyd
The kingdom's strongest court magician. Lloyd has sworn unwavering loyalty to Claire and worked tirelessly to rise to his current position in order to support her. Not only does he excel in magic, but he also constantly trains his body, mastering martial arts and swordsmanship to a level that rivals even the kingdom's knights.

2- Heroine: Claire
Originally an ordinary office lady, Claire was reincarnated into a world that resembles her favorite game. Determined to save the world she loves, she takes on the role of a princess and carries out her duties with grace and resolve.

Laios, no!

Base +11, kaiseryuu +6, Guld und Silber +6, l33tmaan +6

"Muscle Portfolio", name checks out

Base +7

That is the widest magician I have ever seen.

Base +7, Lani +10